The corresponding Maya day is Ajaw, in Yucatec Ahau, and the word means lord or ruler. It is the most important day of the twenty: the Long Count records dates by the day 4 Ajaw at which the count begins, Classic-period rulers bore the title k'uhul ajaw, holy lord, and the glyph for the day is also the glyph for a ruler's face. It is associated with the sun and with the sun god K'inich Ajaw, so the solar element of the Dreamspell reading is genuine, but the political and dynastic content, the day of lordship, is absent from it. That is a fitting note on which to close the set: the Dreamspell has taken a calendar embedded in the statecraft, agriculture and ritual of a specific civilisation and rendered it as a system of personal psychological attributes, and however useful its users find that, the two are not the same object.
Ahau is the twentieth and last of the twenty authentic Tzolk'in day signs, its imagery the lord and the sun, the most prestigious of the twenty signs and, in the Long Count, the only sign on which Katun and Baktun period endings can fall; the living K'iche' daykeeping tradition knows the corresponding day as Ajpu. In the directional scheme carried by the twenty signs, Ahau belongs to the south and the colour yellow. Ahau is numbered out of sequence in the Dreamspell's own list, appearing here as Solar Seal 20, Yellow Sun, even though the twenty seals otherwise run in the same order as the twenty Tzolk'in signs; Yellow Sun borrows Ahau's solar, lordly imagery directly.